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目的观察银汞桩核修复磨牙严重缺损的疗效。方法 100颗严重缺损的磨牙在完善的根管治疗后随机分成两组。A组采用银汞桩核恢复外形,全冠修复。B组采用铸造桩核恢复外形,全冠修复。结果 3年后回访观察,A组成功率为95.74%,B组为97.78%,两组比较差异无统计学意义(P>0.05)。结论银汞桩核是修复牙体严重缺损的一种较好方法,且操作简便、价格便宜。
Objective To observe the curative effect of silver-mercury post-core restoration on the severe molars. Methods 100 severely damaged molar teeth were randomly divided into two groups after complete root canal treatment. A group with amalgam post-core restoration shape, crown restoration. Group B cast post-core recovery shape, crown repair. Results Three years after the visit, the successful rate of group A was 95.74% and that of group B was 97.78%. There was no significant difference between the two groups (P> 0.05). Conclusion Amalgamated post-core is a good method to repair serious dental defects and is easy to operate and cheap.